Tropylium tetrafluoroborate
Tropylium tetrafluoroborate is an organic compound with the formula C7H7BF4. Containing the tropylium cation and the non-coordinating tetrafluoroborate counteranion, tropylium tetrafluoroborate is a rare example of a readily isolable carbocation. It is a white solid.[1]
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| Names | |||
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| Other names
cycloheptatrienyl tetrafluoroborate | |||
| Identifiers | |||
3D model (JSmol) |
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| ChemSpider | |||
| ECHA InfoCard | 100.043.816  | ||
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| Properties | |||
| C7H7BF4 | |||
| Molar mass | 177.94 g·mol−1 | ||
| Appearance | white solid | ||
| Melting point | 200 °C (392 °F; 473 K) decomposition | ||
| Related compounds | |||
Other anions |
Tetrafluoroborate | ||
Other cations |
Tropylium | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
| Infobox references | |||
This compound may be prepared by the reaction of cycloheptatriene with phosphorus trichloride, followed by tetrafluoroboric acid.[1][2]
See also
- Triphenylmethyl chloride, also known as trityl chloride.
References
- Kenneth Conrow (1963). "Tropylium Tetrafluoroborate". Org. Synth. 43: 101. doi:10.15227/orgsyn.043.0101.
- Kane, John L.; Danheiser, Rick L. (2001). "Tropylium Tetrafluoroborate". Encyclopedia of Reagents for Organic Synthesis. Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rt429. ISBN 0-471-93623-5.
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